(No.YF087)1-17
SECTION 4
ADJUSTMENT
4.1
PREPARATION
4.1.1 Precaution
Camera system and deck system of this model are specially
adjusted by using PC.
However, if parts such as the following are replaced, an
adjustment is required. The adjustment must be performed in a
Service Center equipped with the concerned facilities.
• OP BLOCK ASSEMBLY
• VF ASSEMBLY
• MONITOR ASSEMBLY
• EEP ROM (IC1005 of MAIN board)
In the event of malfunction with electrical circuits, first find a
defective portion with the aid of proper test instruments as shown
in the following electrical adjustment procedure, and then
commence necessary repair/ replacement/adjustment.
• In observing chip TP, use IC clips, etc. to avoid any stress.
Prior to replacement of chip parts (especially IC), remove the
solder completely to prevent peeling of the pattern.
• Use a patch cord if necessary. As for a patch cord, see the
BOARD INTERCONNECTIONS.
• Since connectors are fragile, carefully handle them in
disconnecting and connecting the FPC.
4.1.2 REQUIRED TEST EQUIPMENT
• Personal computer (for Windows)
• Color TV monitor
• Oscilloscope (dual-trace type, observable 100MHz or higher
frequency). The one observable 300 MHz or higher frequency
is recommended.
• Digital voltmeter
• DC power supply or AC adapter
• Frequency counter (with threshold level adjuster)
4.1.3 TOOLS REQUIRED FOR ADJUSTMENT
•
Chip IC replacement jig
To be used for adjustment of the camera system.
•
Cleaning cloth
Recommended the Cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens sur-
face.
•
Guide driver (Hexagonal)
To be used to turn the guide roller to adjustment of the linarity
of playback envelope.
•
INF adjustment lens
To be used for adjustment of the camera system. For the
usage of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
•
INF adjustment lens holder
To be used together with the Camera stand for operating the
Videocamera in the stripped-down condition such as the sta-
Service Support System
YTU94057-86
INF Adjustment Lens
YTU92001B
INF Adjustment Lens Holder
YTU94087
Camera Stand
YTU93079
Light box Assembly
YTU93096A
Gray Scale Chart
YTU94133A
Color Bar Chart
YTU94133C
Communication Cable
YTU93107A
PC Cable
QAM0099-005
Extension Connector
YTU94145D-40
Extension Connector
YTU94145F-40
Jig Connector Cable
YTU93106C
Alignment Tape
MC-2
Chip IC Replacement Jig
PTS40844-2
Cleaning Cloth
KSMM-01
Guide Driver (Hexagonal)
D-770-1.27